Ring-adjusting machine for bobbins



Nov. 15, 1927. 1,649,186

c. RAND RING ADJUSTING. MACHINE FOR BOBBINS Filed May 25 1926 3Sheets-Sheet 4 J6 m w a' w ammi J. N l W Z \llmnfiiu I: 71 um I ll II IIlllll a; C'Lwrc um? mam-bl C. RAND RING ADJUSTING MACHINE FOR BOBBINSNov. 15, 192 7.

Filed May 25 1926 3 Sheets-Sheet 2 Hill IllllllllIlllllllllllllll llll,3 C(nreucl Nov; 15, 1927.

C. RAND RING ADJUSTING MACHINE FOR BOBBINS Filed May 25 1926 3Sheets-Sheet 5 attain CLARENCE RAND, F AUBURN, MAINE.

RING-ADJ USTIN G MACHINE FOR ROBBINS.

Application filed May 25,

A large proportion of the shuttle bobbins in commonuse are fitted withone or more rings of tempered steel wire which are kept in place byspring tightness. It is usually necessary for satisfactory working, toadjust the open joints of each of these rings to a definitepredetermined position.

The object of my invention is to provide a machine which can be readilyadapted to adjusting the position of these joints in a great variety ofbobbins or other rings supporting pieces.

The construction shown in the accompanying drawings is especiallydesigned for adjusting the'joints of the three rings of a certain bobbinat equal distances from each other; but it is readily adaptable, withoutchanging its mode of operation, to adjusting the joints in any otherdefinite relation to each other or to any bobbin or other centralsupport with which the rings make frictional contact. in theaccompanying drawings Fig. 1 is a full size drawing, in partial section,showing the bobbin with its attached and unadjusted rings, and the partswhich act directly on the rings; Fig. 2 and Fig. 3 are details of Fig.1; Fig. i is a front elevation of the complete machine; Fig. 5 isadetail of Fig. 1; Fig. 6 is a plan of the bobbin feeding mechanism ofFig. 1 with apart cut away to show its internal structure; Fig. '4' is arear elevation of the ring adjusting mechanism; Fig. 8 is a sectionalplan through the line 02-3] of Fig. 7; Fig. 9 is a similar plan showingdetails just below the line \CZ 7) of Fig. 7; Figs. 10, 11, 12, 13,taken together, show the interactions and time relations of the fourcams on the principal shaft.

in each of these figures a division of the circumference into sixcorresponding parts is similarly indicated as, S S S 55*, S,

Fig. 10 shows the cam which imparts a hack and forth motion to the partswhich adjust the position of the ring joints.

Fig. 11 shows the cam which controls the final position of the ringjoints that are first adjusted.

Fig. 12 shows the cam which controls the final position of the ringjoint or joints that are last adjusted.

Fig. 13 shows the cam that actuates the parts that disconnect the ringadjusting mechanism from the ring joints and hold it locked until thebobbin is shifted.

cated by the holes 15,

1926. Serial no. 111,501.

Fig. 14 is a detail drawing of the parts which act directly on thebobbin rings.

In these drawings A is any part of the fixed framework, B is a bobbin,1, 2, 3 are the open joints in the rings on the bobbin, 4, 5, 6 arecatches which are pressed into the joints 1, 2, 3 by the springs 7, 8,9. These catches and pins are identical in shape and function. Thecatches 5, 6 and correspond ing springs 8, 9 are not shown in thedrawings; but their positions are sufiiciently indi- I 16, which passthrough them. 10, 11, 12 are ring enclosing-gears which are themselvesinclosed and lreptin place by the case 13; 14, 15, 16 are holes whichpass through the catches 4t, 5, 6 and through the adjacent gears 10, 11,12; 17, 1.8, 19 are wedge pointed v pins which pass through the holeslet, 15, 16 and pull the catches out of the open joints 1, 2, 3; the cam20, through the rockshaft2l, imparts an upward and downward motion tothe guided frame 22 on which are mounted the wedge pointed pins 17, 18,19; 23, 24, 25 are driving gears which mesh with the inclosing gears 10,11, 12; 26 is a gear on the shaft of 24 which meshes with a similar gear77 on the shaft of 23; on the shaft 27 of 24. are

mounted the single notched ratchet wheel 28, the loose gear 29(connected with 28 by the pawl 38) and the adjusting and locking cam 30that is controlled by the swinging arm 31 which receives its motionthrough the connecting rod 33 from the cam 34s; the shaft 35 of thedriving gear 25 carries the single notched ratchet wheel 36 connectedwith the loose gear 37 by the pawl 39; the shaft 35 also carriesunderneath the fixed supporting plate A, the adjusting and lock ing cam40 that is controlled by the swinging arm 41 which receives its mot-ionthrough the connecting rod a2 and the rocking arm 43 from the cam 44;the loose gears 29 and 37 are in mesh with the rack 45 which receivesits motion through the rocking arm l6 from the cam 47 which formspart ofthe drivinggear on the cam shaft 18, this gear 47 is in mesh with thepinion 19 on the driving shaft 50; on this driving shaft 50 is a worm 51which engages a worm gear 52 on the vertical shaft 53; the worm and gear51 and 52) are so proportioned that the revolutions of the cam shaft 18and the vertical shaft 53 are identical; at the top of the verticalshaft 53 is the one-leaved-pinion 54 which both drives and locks theduplex gear The gear 55 is attached to the under side of the bobbinholder supporting frame 56 which has a series of bobbin holders as 70fastened to its outer rim and held clear from the fixed plate 57 onwhich the bobbins rest. In the plate 57 is an opening 58 over the bobbintube 59 through which the bobbin falls until it strikes the movable stopas shown in Fig. 1; this stop 60 is adjusted to bring the ring joints 1,2, 3 opposite the gears 1t), 11, 12; it varies in shape and verticalposition to correspond with different bobbins, or with other ringholding pieces. It receives its motion through a connecting rod from thevertically adjustable cam 61 on the shaft 53. A cam 62 on the same shaftcontrols the opening and closing of a three leaved chuck 64 through theconnecting rod 65 as shown in Fig. 5. The cam (32 is fitted with ayielding channel wall 71 pressed inward by the spring 72. When I wish tomake use of my invention I set the machine in motion and bring the cams47, 3 41 1, 20 and their connections approximately into the positionshown in Figs. 10, 11, 12,13, so that the part of the cam opposite S ineach of these figures is acting on the cam rollers of the correspondinglever arms 46,

33, 13, 21. Then I drop one or more bobbins into the bobbin holders 7()of the bobbin supporting frame 56 and again set the machine in motion.The single leaf of the pinion 54 enters the corresponding slot in thegear 55 and moves it the definite amount needed to bring the nearestbobbin. precisely over the opening 58. The circular part of 51 nowenters its circular seat in the rim of 55 which it holds locked throughthe remainder of the revolution of the cam shafts.

As soon as the bobbin holder is in line with 59, the bobbin 13 dropsuntil it strikes the movable stop 60. As soon as the bobbin drops intoplace, the cam 62 on the shaft 53 comes into action and closes thecentering chuck 64. The construction of this chuck is not shown indetail, as any centering device can be substituted, except that for useon varnished or other finely finished bobbins the jaws should be verysmooth.

The previously explained construction of the cam 62 makes the centeringof the chuck 64 self adjusting for different bobbins, and also permitsmaking the grip of the chuck on the bobbin as light, or as strong asdesired. At the time the bobbin drops from the bobbin holder the catches4, 5, 6 are held pressed back into the gears 10, 11, 12 by the the wedgepointed pins 17, 18, 19, which also hold the catches at the precisepoints at which the joints 1, 2, 3 are to be placed. As soon as thebobbin has dropped into place the action of the cam 20 removes the pinsfrom the catches, thereby leaving each catch free to be pressed againstthe ring in front of it by the two compressed springs, as

shown in Figs. 1, 2, and 3. At the same time the adjusting and lockingcam 30. which controls the ring inclosing gears 10 and 12, is releasedby the swinging out of the arm 31.

The gears 10 and 12 are now set in motion in opposite directions by thecam 17 a-ting through the rack and the intermediate gearing specified.As the tempered steel rings usually cling tightly to the bobbins, thecatches -l and 6 slip over them until they are caught in the openjoints. They then drag the rings along with them, so that at the end ofthe traverse of the rack 45 the joints 1, 2, are close to the startingpoints of the catches l, 5, 6; when the swinging arm 31, controlled bythe cam 31, moving into the notch in the adjusting and locking cam 30,brings it accurately into position and lot-ks it there.

Meanwhile. the adjusting and locking cam 1-0 is released by the swingingout of the arm 41, leaving the gear 11 to be held in place by thefriction of the adjustable clamp 7 5 on the shaft of its driving gear 24until the locking of the cam 30 and the reversal of the motion of therack 45, when the single notched ratchet wheel 36 will be in such aposition that the pawl 39 will immediately seize it and transmit themotion of the rack 45 to the ring inclosing gears 11 and thereby pullthe ring joint 2 round to the starting point of the catch 5. i

The holes in the inclosing gears will now be in line with the wedgepointed pins on the guided frame 22, which will now be lifted by the cam20, wedging back the catches 4, 5, and 6.

At the same time the stop 60 is moved out of 59 by the cam 61, thebobbin B drops clear of the machine and another bobbin is moved forward.The machine can be readily adapted to handling a great variety ofbobbins and other ringholding pieces by changing the spacing of thewedge pointed pins and the timing of the cams.

Having now fully described the essential features of my invention andtheir embodiment in a useful machine; what I claim is:

1. In a machine for adjusting a bobbin ring to a definite position, agear having a central opening concentric with the ring and inclosing it,a' case inclosing the gear and keeping it in working position, a springcatch reacting against the gear and entering the open joint in the ring,means of imparting to the gear a series of complete revolutionsseparated by periods of rest, and means of pulling back the spring catchwhile the gear is at rest; all in combination with each other and withan internal support for the ring with which it makes frictional contact.

2. In a machine for adjusting bobbin rings a series of three similargears inclosing the rings and corresponding in thickness to the distancebetween the rings, a spring catch in each gear adjusted at anequiangalar distance from the catches in the other two gears, and a caseinclosing the three gears and controlling their position; in combinationwith actuating gearing which is timed to move two ot the inclosing gearsin opposite directions for a complete revolution while the third gearstands still, and thereafter to move the third gear through a completerevolution while the gears first mentioned stand still; all as setforth.

3. In a machine for adjusting bobbin rings which have a spring contactwith the bobbin, a pair of enclosing gears, spring catches which reactbetween the gears and the ring joints, and means imparting motion inopposite directions to the two gears for a complete revolution.

i. In a machine for adjusting the open joints of a series of bobbinrings which make frictional contact with their support; the combinationof an inclosing gear around each ring a spring catch connecting eachgear with its corresponding open joint and means of controlling themotion of the gears which gives to a part of them a complete revolution,while the others are kept from turning in the same direction.

5. In a machine for adjusting the joints of bobbin rings, an adjustinggear, transmission gearing through which approximately one revolution istransmited to the adjusting gear at a time, a locking cam which moveswith the gear, and a swinging arm which adjusts the locking cam to theposition from which it started and locks it there.

In testimony whereof I aiiix my signature.

CLARENCE BAND.

